Tuesday, 27 January 2015

The Archaeology News Network

Fishermen catch Frill Shark “living fossil” in Australia
noreply@blogger.com (TANN) at The Archaeology News Network - 23 hours ago
The frilled shark (Chlamydoselachus anguineus) gains its name from its six pairs of frill like gills. It is one of two remaining species of this ancient family which dates back 80 million years. Deeply unpleasant to look at, this frilled shark was found in Victorian waters near Lakes Entrance [Credit: SEFTIA]It has a wide but patchy distribution in the Atlantic and Pacific Oceans on the outer and upper continental slope,... [[ This is a content summary only. Visit my website for full links, other content, and more! ]]
Solving the Hox Specificity Paradox
noreply@blogger.com (TANN) at The Archaeology News Network - 23 hours ago
The remarkable diversity of anatomical features along the body axis of animals—the differences between the head, the thorax and the abdomen, for example—is determined by proteins in the Hox family. But almost as soon as the Hox genes were discovered, scientists began puzzling over how different Hox proteins could activate specific genes, because all of these proteins can bind to the same DNA sequences. Now Howard Hughes Medical... [[ This is a content summary only. Visit my website for full links, other content, and more! ]]
Atomic Scientists: We're getting even closer to doomsday
noreply@blogger.com (TANN) at The Archaeology News Network - 23 hours ago
The Bulletin of the Atomic Scientists says Earth is now closer to human-caused doomsday than it has been in more than 30 years because of global warming and nuclear weaponry. But other experts say that's way too gloomy. The advocacy group founded by the creators of the atomic bomb moved their famed "Doomsday Clock" ahead two minutes on Thursday. It said the world is now three minutes from a catastrophic midnight, instead of five... [[ This is a content summary only. Visit my website for full links, other content, and more! ]]
Fossil find turns out to be new member of world's oldest soft-shell turtle family
noreply@blogger.com (TANN) at The Archaeology News Network - 23 hours ago
Seven fossilized shell fragments unearthed in Fukuoka Prefecture more than 20 years ago belong to the world's oldest genus of soft-shell turtle, officials at the Fukui Prefectural Dinosaur Museum said Jan. 22. An artist’s rendition of the ancient Adocus sengokuensis turtle [Credit: Fukui Prefectural Dinosaur Museum/Mami Osatomi]Researchers in a joint study between the Fukui facility and the Kita-Kyushu Museum of Natural History... [[ This is a content summary only. Visit my website for full links, other content, and more! ]]
Fossils survive volcanic eruption to tell us about the origin of the Canary Islands
noreply@blogger.com (TANN) at The Archaeology News Network - 23 hours ago
The most recent eruption on the Canary Islands – at El Hierro in 2011 – produced spectacularly enigmatic white ‘floating rocks’ that originated from the layers of oceanic sedimentary rock underneath the island. An international team of researchers, led from Uppsala University, use microscopic fossils found in the rocks to shed new light on the long-standing puzzle about the origin of the Canary Islands. El Hierro, the westernmost of... [[ This is a content summary only. Visit my website for full links, other content, and more! ]]
Study projects unprecedented loss of corals in Great Barrier Reef due to warming
noreply@blogger.com (TANN) at The Archaeology News Network - 23 hours ago
The coverage of living corals on Australia's Great Barrier Reef could decline to less than 10 percent if ocean warming continues, according to a new study that explores the short- and long-term consequences of environmental changes to the reef. The coverage of living corals on Australia's Great Barrier Reef could decline to less than 10 percent if ocean warming continues, according to a new study [Credit: Catlin Seaview... [[ This is a content summary only. Visit my website for full links, other content, and more! ]]
Climate change does not bode well for picky eaters
noreply@blogger.com (TANN) at The Archaeology News Network - 1 day ago
In a part of the world that is experiencing the most dramatic increase in temperature and climate change, two very similar species of animals are responding very differently. New research published suggests that how these species have adapted to co-exist with one another might be to blame. Gentoo and Chinstrap penguins evolved differences in diets over time that reduce competition for food and help them co-exist. However, recent... [[ This is a content summary only. Visit my website for full links, other content, and more! ]]
Middle Triassic fossils reveal how flying fish started to glide
noreply@blogger.com (TANN) at The Archaeology News Network - 1 day ago
Modern flying fish are remarkable for leaping from the water to glide in the air using long, winglike fins, presumably to escape aquatic predators. This extraordinary gliding strategy, unlike those in terrestrial gliders, is energetically very expensive and has otherwise been hypothesized to occur only in a single stem group of the Neopterygii, the Thoracopteridae from the Late Triassic of Austria and Italy and Middle Triassic of South... [[ This is a content summary only. Visit my website for full links, other content, and more! ]]
Are aliens watching old TV shows?
noreply@blogger.com (TANN) at The Archaeology News Network - 1 day ago
You've probably heard the trope about how aliens have been watching old episodes of "I Love Lucy" and might think these are our "historical documents". How far have our signals reached? Electromagnetic Spectrum [Credit: Universe Today]Television transmissions expand outward from the Earth at the speed of light, and there's a trope in science fiction that aliens have learned everything about humans by watching our television shows. If... [[ This is a content summary only. Visit my website for full links, other content, and more! ]]
Atoms can be in two places at the same time
noreply@blogger.com (TANN) at The Archaeology News Network - 1 day ago
Can a penalty kick simultaneously score a goal and miss? For very small objects, at least, this is possible: according to the predictions of quantum mechanics, microscopic objects can take different paths at the same time. The world of macroscopic objects follows other rules: the football always moves in a definite direction. But is this always correct? Physicists of the University of Bonn have constructed an experiment designed to... [[ This is a content summary only. Visit my website for full links, other content, and more! ]]
Early human ancestors used their hands like modern humans
noreply@blogger.com (TANN) at The Archaeology News Network - 3 days ago
New research suggests pre-Homo human ancestral species, such as Australopithecus africanus, used human-like hand postures much earlier than was previously thought. An example of a human precision grip, grasping an Australopithecus africanus first metacarpal (StW 418) of the thumb (3-2 million years old) [Credit: T.L. Kivell & M. Skinner]Anthropologists from the University of Kent, working with researchers from... [[ This is a content summary only. Visit my website for full links, other content, and more! ]]
Delos museum construction plans approved
noreply@blogger.com (TANN) at The Archaeology News Network - 3 days ago
The plans for the construction of a new museum on the Greek island of Delos were approved by the Central Archaeological Council, after the funds for the plans were collected. According to the plans, the new museum will have to adhere to strict bio-climatic architectural standards and must be situated as far away as possible from the sea, in order to better protect the antiquities and the museum itself from the elements. The new... [[ This is a content summary only. Visit my website for full links, other content, and more! ]]
Ancient 'red numbers' discovered on Colosseum
noreply@blogger.com (TANN) at The Archaeology News Network - 3 days ago
Traces of painted red numbers have been discovered during the ongoing restoration of the Colosseum, indicating various sectors of the amphitheatre similar to the seating system employed by today's stadiums. Restorers have found marks indicating sectors of stadium [Credit: La Repubblica]The numbers were painted on the arches of the Colosseum to guide visitors to their respective stands, according to their social class. Describing... [[ This is a content summary only. Visit my website for full links, other content, and more! ]]
Doubt cast on global firestorm generated by dino-killing asteroid
noreply@blogger.com (TANN) at The Archaeology News Network - 3 days ago
Pioneering new research has debunked the theory that the asteroid that is thought to have led to the extinction of dinosaurs also caused vast global firestorms that ravaged planet Earth. Fire propagation apparatus recreating the impact induced thermal pulse at the Cretaceous-Palaeogene (K-Pg) boundary. Halogen lamps are delivering the thermal radiation [Credit: University of Exeter]A team of researchers from the University... [[ This is a content summary only. Visit my website for full links, other content, and more! ]]
In theory, the Milky Way could be a 'galactic transport system'
noreply@blogger.com (TANN) at The Archaeology News Network - 3 days ago
Based on the latest evidence and theories our galaxy could be a huge wormhole (or space-time tunnel, have you seen the movie "Interstellar?") and, if that were true, it would be "stable and navigable." This is the hypothesis put forward in a study published in Annals of Physics and conducted with the participation of SISSA in Trieste. The paper, the result of a collaboration between Indian, Italian and North American researchers,... [[ This is a content summary only. Visit my website for full links, other content, and more! ]]
Huge asteroid to whip past Earth on Monday
noreply@blogger.com (TANN) at The Archaeology News Network - 3 days ago
An asteroid up to 1,800 feet (550 meters) across is headed Earth's way. But don't worry: It will miss us by 745,000 miles, about three times the distance between Earth and the moon. Still, that's close for such a large rock. The asteroid 2004 BL86 is slated to come within approximately 745,000 miles of our planet next Monday, Jan. 26, 2015 [Credit: Getty Images]NASA scientists say asteroid 2004 BL86 will come closest Monday.... [[ This is a content summary only. Visit my website for full links, other content, and more! ]]
Two lakes beneath the ice in Greenland, gone within weeks
noreply@blogger.com (TANN) at The Archaeology News Network - 3 days ago
Researchers who are building the highest-resolution map of the Greenland Ice Sheet to date have made a surprising discovery: two lakes of meltwater that pooled beneath the ice and rapidly drained away. In April 2014, researchers flew over a site in southwest Greenland to find that a sub-glacial lake had drained away. This photo shows the crater left behind, as well as a deep crack in the ice [Credit: Stephen Price, Los... [[ This is a content summary only. Visit my website for full links, other content, and more! ]]
Death of a dynamo: A hard drive from space
noreply@blogger.com (TANN) at The Archaeology News Network - 3 days ago
Hidden magnetic messages contained within ancient meteorites are providing a unique window into the processes that shaped our solar system, and may give a sneak preview of the fate of the Earth's core as it continues to freeze. An image of the Esquel meteorite, which consists of gem-quality cystals embedded in metal. The magnetism of this metal has been used to investigate the development of planetary bodies 4.6 billions... [[ This is a content summary only. Visit my website for full links, other content, and more! ]]
Harnessing data from Nature’s great evolutionary experiment
noreply@blogger.com (TANN) at The Archaeology News Network - 3 days ago
There are 3 billion letters in the human genome, and scientists have endlessly debated how many of them serve a functional purpose. There are those letters that encode genes, our hereditary information, and those that provide instructions about how cells can use the genes. But those sequences are written with a comparative few of the vast number of DNA letters. Scientists have long debated how much of, or even if, the rest of our... [[ This is a content summary only. Visit my website for full links, other content, and more! ]]
Scientists drilling first deep ice core at the South Pole
noreply@blogger.com (TANN) at The Archaeology News Network - 3 days ago
This winter, when many people’s imaginations were fixed on the North Pole, a small group of scientists has been working on the other side of the planet. In round-the-clock daylight and frigid temperatures, glaciologists have been drilling an ice core at the South Pole. Existing deep ice cores are shown by black dots. The South Pole core (red dot) will fill in the picture of Antarctic climate. The UW researchers were also part of... [[ This is a content summary only. Visit my website for full links, other content, and more! ]]